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timurjin [86]
2 years ago
10

What is square root of 4.2 in simplified radical form

Mathematics
1 answer:
vesna_86 [32]2 years ago
3 0
\sqrt{4.2}
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2 years ago
I need help with my homework I did it but it is wrong.​
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Step-by-step explanation:

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Pls help i dont get how to do this
Lorico [155]

Step-by-step explanation:

What this is saying is...20 is a whole number; but 3/4 is not. What they are saying is, if you have to add a mixed number with a whole number, you can add both of the whole numbers together. Then, you add the 3/4 at the end...because it is not a whole number. You can break apart a mixed number by separating the whole number and the fraction.

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2 years ago
Find x. Round to the nearest degree.
jeka94

The Law of Cosines features the 3 side lengths of a triangle, plus the measure of the angle opposite one of those sides.


We want angle x, which is opposite the side of length 39.


Then: a^2 = b^2 - 2ab cos C becomes 39^2 = 36^2 + 59^2 - 2(36)(59)cos x


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Subtract (3481+1296) from both sides: 1521 - 4777 = -4248cos x

-3256 = -4248cos x

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Then: cosx = --------------- = 0.766

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It will be 1062000 because....
you multiply 202400 by 5
the key word in the reading is times
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